spot the difference (puzzle)

love (in both senses of loving a friend or family member and a partner romantically) / very (most) favorite

a mistake / an error by mistake, misjudgment, or misconception. / trouble; an accident

search, look for

puzzle (type of game; includes jigsaw puzzles, etc.)

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

(games) Synonym of クロスワード (kurosuwādo, “crossword”); a crossword puzzle

a jigsaw puzzle